a = "laoyou is a teacher"
b = list(a)
for i in b[0:6]:
    print("\t",i) # "\t"横向空格
for i in b[7:9]:
    print("\t"*2,i)
for i in b[10:11]:
    print("\t"*3,i)
for i in b[12::]:
    print("\t"*4,i)


	#  l
	#  a
	#  o
	#  y
	#  o
	#  u
	# 	    i
	# 	    s
	# 		    a
	# 			    t
	# 			    e
	# 			    a
	# 			    c
	# 			    h
	# 			    e
	# 			    r
